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safemode

Learn why Firefox may start in Troubleshoot Mode (previously known as "Safe Mode") when you expect it to start normally and how to fix it.

This article describes why Firefox may start in {for fx88}Troubleshoot Mode{/for}{for not fx88}Safe Mode{/for} when you expect it to start normally and how to fix the problem. * See the [[Diagnose Firefox issues using Troubleshoot Mode]] article for information about using this special startup mode to fix Firefox problems. If you started Firefox in {for fx88}Troubleshoot Mode{/for}{for not fx88}Safe Mode{/for}, it will remain in {for fx88}Troubleshoot Mode{/for}{for not fx88}Safe Mode{/for} until Firefox is completely closed. The easiest way to make sure Firefox is completely closed is to restart your computer. Once your computer starts up again, start up Firefox. When Firefox crashes at startup, the next time you launch Firefox it displays the {for fx88}[[Diagnose Firefox issues using Troubleshoot Mode#w_11troubleshoot-modesf12safe-modesf-window|Troubleshoot Mode window]]{/for}{for not fx88}[[Diagnose Firefox issues using Troubleshoot Mode#w_11troubleshoot-modesf12safe-modesf-window|Safe Mode window]]{/for}. This lets you choose between starting in Firefox {for fx88}Troubleshoot Mode{/for}{for not fx88} Safe Mode{/for} or [[Refresh Firefox - reset add-ons and settings|refreshing Firefox]] because you may have something wrong with your configuration (such as graphics, add-ons, or third-party software). See [[Troubleshoot Firefox crashes (closing or quitting unexpectedly)]] for help solving crashes when starting Firefox.